Just replaced my LvL 7 bolt (I think) on my Automag RT with a ANS phase 2 bolt . It seems to shoot fine and seems a little less noisey. Has anyone else had any experance with these bolts? They dude at my local pro shop has a minimag and has the same bolt and he says he love's it, but then later in the conversation he says he hasnt got his mag work correctly since he got it.. (Valve problems he's assuming)..